Author Topic: Four Valves for 1936-38 Douglas 500cc-600cc  (Read 6712 times)

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Offline Dave

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Four Valves for 1936-38 Douglas 500cc-600cc
« on: 07 Apr 2004 at 08:16 »
Four valves to suit 1936-38 Douglas 500cc and 600cc engines. Might also fit Blue Chief and Endeavour models of 1934-35. Could also be shortened to suit 250cc-350cc engines.

Larger picture of above available here

Three of the valves have a "James" brand name on them while the fourth is labelled "1507 SC". Dimensions of the valves are 5/16" stem diameter, 1-1/4" head diameter and 4-7/32" length. The "1507 SC" valve is 4-3/16" in length.

Condition of the valves is very good as they have never been used. There are some small black spots in a few places - see close up photo here

All proceeds from the sale of these valves go towards hosting costs for this website. (see below)

Pricing as follows.

Anywhere in the world - US$20.00 plus postage US$9.00
Within Australia   - A$30.00 plus postage A$4.50

Insurance is optional.

These valves were kindly donated in support of this website by Martyn Hudson. Martyn is a Veteran Car enthusiast and runs a grease packing business ( He regularly delivers to the old Douglas factory in Douglas Rd, Kingswood. He mentioned
"You could still see the drawings of numerous components for the bikes on the painted walls in many of the storage areas and machine shops. The compressor house also has some interesting drawings."

Thank you Martyn for your kind donation.